- The final battle in the War of the Gods will be decided by the strength of the Warriors, and the valor of the new warriors referred to as Summoners. If they truly wish to end this cycle, the Warriors of Cosmos and the Summoners must possess the power to break the chains of cause and effect, invert black and white, and act in complete contradiction to the rules of the universe...
A Dissidia Final Fantasy Fanfiction created by StarlightAT and Co-Written with Shadow Ninja Koopa. After the events of the 13th Cycle, Chaos wanted revenge against the Great Will and Cosmos, and Shinryu gave him that chance by creating a Nightmare World that trapped the Warriors in the dimension. Forced to fight again and again the world collapsed due to the pressure of Feral Chaos and the Warriors were forced to move to another world to fight. If they can win this cycle, then they will most surely be able to go home. However, they cannot enter the world without "permission" and thus have to rely on certain people to "Summon" them.
Hikari Himemiya is a Priestess of one of the worlds many gods, and ends up calling forth the Warrior of Light on her 16th Birthday. Along with Rei Tachibana, the Summoner of Firion, and Shirou Ogami, the Summoner of Cecil Harvey, the three leave the village they have called home since birth to track down the other Summoners and Warriors. Along the way they must face off against remnants of a war from twenty years ago, the monsters and demons that rage throughout the world, and the rules of the cycle that has entrapped the Warriors to the new world of Mundeus. And sadly the Warriors of Cosmos aren't the only ones with Summoners, and the main rule for both sides has been set; If the Summoner dies, then the Warrior dies as well...
Not as dreary as you think as the story contains huge amounts of Comedy on the OC's parts as well as a wide variety of characters.
The first chapter can be found here! 
The author has announced that chapters 1-6 will be getting a rewrite due to continuity issues, typos and basically fixing other mistakes.
This fanfic contains examples of
- Bloodier and Gorier: The author actually describes the wounds the characters have to show that yes, they can get hurt.
- Brainwashed and Crazy: Garland, due to Kefka and the Emperor's machinations.
- Cool Sword: Anyone who wields a sword.
- Curb-Stomp Battle: Cloud of Darkness has little to no trouble defeating Terra and Hikari, and Exdeath does the same to Zidane and Kanna.
- Elegant Gothic Lolita: Kanna Vale is this plus a ninja AND runs a traveling store dedicated to Lolita fashion.
- Elemental Powers: Hunter's magic falls under the four main elements. Other characters can wield these but not to the same extent.
- Expy: Rei Tachibana is one for Rin Tohsaka
- Fish out of Temporal Water: the Warriors (mostly those whose games are set in medieval times)
- Gemstone Assault: Rei's main method of summoning, and is said to be a Shout-Out to Satella Harvenheit.
- Good Old Fisticuffs: Shirou's preferred method of fighting.
- Made of Iron: Kanna, Kai and Ace don't seem to be suffering too many injuries.
- Magic Knight: Kai uses Spell Blade.
- Miko: Hikari is described as a Priestess-in-Training but the effect still holds. Cheveyo is a male example and is said to be a 'Priest of the Wind.'
- Mix-and-Match Weapon: Kanna's weapon can change from a large Shuriken to Kusarigama with a ribbon instead of a chain.
- Multicolored Hair: Kanna has Light Gray Hair with blue streaks.
- Power Crystal: The Warriors crystals, as well as the Barrier Crystal that powers a Barrier surrounding Akikaze and protecting it from monsters and demons.
- The Protagonist: The Protagonist for the Warriors of Cosmos is Warrior of Light, and Hikari is the protagonist of the Summoners.
- Spell Book: Hikari's main weapon that acts as a Spell Book, and can morph into weapons.
- Bow and Sword, in Accord: Like Serah in XIII-2, Hikari possesses a Bow-Sword as a Shout Out to the series.
- Summon Magic: While this trope is for the Summoners, Rei deserves special mention for her magic being summoning. It has a side effect to it as well.
- Swiss Army Weapon: Kanna, Hikari and Hunter have one apparently.